Underground water pumping pipe assembly for underground water motor pump

ABSTRACT

There is provided an underground water pumping pipe assembly, comprising: a first pipe coupled to an underground water motor pump; second to n-th pipes wherein the second pipe is coupled to the first pipe; a packing configured to wrap the first pipe; clamping bands, each band coupled to each first securing portion to fix the packing to the first pipe; and first coupling members to receive therein the first pipe and be coupled to the top and bottom of the packing respectively, wherein each first coupling member has a first member body and first and second guides formed on the body to be vertically arranged to be alternated with each other to define spaces therebetween, wherein an electrical wire and a wire rope for the motor pump extend through the spaces respectively.

BACKGROUND

Field of the Present Disclosure

The present disclosure relates to an underground water pumping pipe assembly for an underground water motor pump, and, more particularly, to an underground water pumping pipe assembly for an underground water motor pump wherein the pumping pipe assembly is protected during an installation thereof.

Discussion of the Related Art

Typically, in order to pull up groundwater, underground hot water, etc., a borehole is drilled into the underground, and then, the underground water pump is inserted into the borehole and then to a groundwater source.

This groundwater pull-up process will be described briefly with reference to FIG. 1. When drilling the borehole H using a driller, the borehole H may extend downwardly not to be straight but bent. Thus, when the pumping pipe P is guided along the borehole H downwardly, the pumping pipe P may hit the rock or may contact the rock. Of course, the underground water pump M may hit the rock or may contact the rock. Therefore, when the underground water pump works and vibrates, the underground water pump may have damage. As a result, there occurs reduced life span and increase in maintenance and repair costs and replacement problems. Further, since each pump pipe has, a 6M unit length and multiple pipes are connected via connections to each other, the electrical wire and wire rope (hereinafter, referred to as ‘underwater electrical wire’ collectively) for the motor pump may be twisted or tangled. This may lead to a breakage, short circuit, or electric shock risk thereof.

To overcome this problem, the present applicant discloses Korean patent number 10-1053710 (2011.07.27.) titled as “packing for underground water pump” or 10-1243231 (2013.03.07.) titled as “coupling member for pumping pipe assembly”. In those document, the packing or coupling member may act as a pipe guidance along the borehole during the installation thereof. Thus, the pipe assembly and underground water pump may be safely installed.

However, in the above documents, during inserting the pumping pipes or drawing into or from the borehole, the packing may hit the rock or walls. Further, since the underground water pump vibrates and the underwater electrical wire is not fixed, the packing may be released or may be damaged. Further, After the coupling member is formed using a mold, a receiving groove to receive the underwater electrical wire may be formed therein. This may require a further cut-away process. This may lead to a deterioration of the production rate and increase in a cost thereof.

PRIOR AT DOCUMENT Patent Document

patent document 1 Korean patent No. 10-1053710 (2011,07.27.) assigned to the present applicant

patent document 2 Korean Patent No. 10-1243231 (2013.03.07.) assigned to the present applicant.

SUMMARY

The present disclosure provides an underground water pumping pipe assembly for an underground water motor pump which may be safely installed into a borehole in the ground via a guidance of a packing and coupling member which, at the same time, may be firmly secured to improve durability thereof.

Further, the present disclosure provides an underground water pumping pipe assembly for an underground water motor pump with the coupling member which may be massively produced using a mole to improve a production rate and lower the cost thereof.

In one aspect of the present disclosure, there is provided an underground water pumping pipe assembly, comprising: a first pipe coupled to an underground water motor pump; second to n-th pipes wherein the second pipe is coupled to the first pipe, wherein the first to n-th pipes are coupled to each other in series; a packing configured to wrap the first pipe, wherein the packing includes first securing portions at a top and bottom thereof, an extension extending between the first securing portions, and vertically elongate cut-away portions formed in the extension; clamping bands, each band coupled to each first securing portion to fix the packing to the first pipe; and first coupling members to receive therein the first pipe and be coupled to the top and bottom of the packing respectively, wherein each first coupling member has a first member body and first and second guides formed on the body to be vertically and alternately arranged with each other to define spaces therebetween, wherein an electrical wire and a wire rope for the motor pump extend through the spaces respectively.

In one implementation, one of the first and second guides has a protrusion formed thereon, wherein each first coupling member is secured to each clamping band with the protrusion being fitted with the clamping band.

In one implementation, the packing has a plurality of extensions vertically arranged to be spaced from each other wherein the packing has a second securing portion between adjacent extensions.

In one implementation, the assembly further comprises second coupling members coupled to tops of the first to n-th pipes respectively, wherein each second coupling member has a second member body and vertical third and fourth guides formed on the body to be alternated with each other to define further spaces therebetween, wherein the electrical wire and the wire rope for the motor pump extend through the further spaces respectively; and coupling tubes coupled to bottoms of the first to n-th pipes respectively, wherein each coupling tube is screw-coupled to each second coupling member adjacent thereto.

In one implementation, each second coupling member has an inwardly stepped portion formed at a vertical middle thereof to define an inner space of each second coupling member into upper and lower space portions, wherein the upper space portion receives a corresponding pipe and the lower space portion receives a corresponding coupling tube via a screw coupling.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows generally a water pumping pipe assembly P and an underground water pump M installed through the borehole H.

FIG. 2 shows a high level view of an underground water pumping pipe assembly for an underground water motor pump in one embodiment of the present disclosure.

FIG. 3 shows an exploded view of an underground water pumping pipe assembly for an underground water motor pump in one embodiment of the present disclosure.

FIG. 4 shows a side view of an underground water pumping pipe assembly for an underground water motor pump in one embodiment of the present disclosure.

FIG. 5 shows a top view taken in a line of A-A in FIG. 4.

Reference numerals 10: packing 12: extension 13: convex edge 14: first securing portion 15: second securing portion 16, 18: vertically elongate cut-away portions 20: clamping band 30: first coupling member 30a: second coupling member 32: first guide 33: protrusion 34: second guide 35: spaces 36: an inwardly stepped portion 37: female screw 38, 44: groove 40: coupling tube 42: screw E: electrical wire P: pumping pipe assembly P1: first pipe, P2: second pipe P3: third pipe Pn: n-th pipe H: borehole W: wire rope

DETAILED DESCRIPTIONS

The present disclosure provides an underground water pumping pipe assembly P, comprising: a first pipe coupled to an underground water motor pump M; second to n-th pipes P2, P3, . . . , and Pn wherein the second pipe is coupled to the first pipe, wherein the first to n-th pipes are coupled to each other in series; a packing 10 configured to wrap the first pipe P1, wherein the packing 10 includes first securing portions 14 at a top and bottom thereof, an extension 12 extending between the first securing portions 14, and vertically elongate cut-away portions 16,18 formed in the extension 12; clamping bands 20, each band coupled to each first securing portion 14 to fix the packing 10 to the first pipe P1; and first coupling members 30 to receive therein the first pipe P1 and be coupled to the top and bottom of the packing 10 respectively, wherein each first coupling member 34 has a first member body and first and second guides 32,34 formed on the body to be vertically and alternately arranged with each other to define spaces 35 therebetween, wherein an electrical wire E and wire rope W for the motor pump M extend through the spaces 35 respectively. In this connection, using the packing and coupling, the assembly is installed through the borehole H.

BEST MODES

Example embodiments will be described i ore detail with reference to the accompanying drawings. The present disclosure, however, may be embodied in various different forms, and should not be construed as being limited to only the illustrated embodiments herein. The present underground water pumping pipe assembly P may include a first pipe coupled to an underground water motor pump M; second to n-th pipes P2, P3, . . . , and Pn wherein the second pipe is coupled to the first pipe, wherein the first to n-th pipes are coupled to each other in series; a packing 10 configured to wrap the first pipe P1, wherein the packing 10 includes first securing portions 14 at a top and bottom thereof, an extension 12 extending between the first securing portions 14, and vertically elongate cut-away portions 16,18 formed in the extension 12; clamping bands 20, each band coupled to each first securing portion 14 to fix the packing 10 to the first pipe P1; and first coupling members 30 to receive therein the first pipe P1 and be coupled to the top and bottom of the packing 10 respectively, wherein each first coupling member 30 has a first member body and first and second guides 32,34 formed on the body to be vertically and alternately arranged with each other to define spaces 35 therebetween, wherein an electrical wire E and wire rope W for the motor pump M extend through the spaces 35 respectively. In this connection, using the packing and coupling, the assembly is installed through the borehole H

Each of the above components will be described in detail below.

The present underground water pumping pipe assembly 100 may mainly include the packing 10, clamping band 20, first coupling member 30 and second coupling member 30 a, and coupling tube 40. The pumping pipe series P may include the first pipe P1 coupled to the underground water pump M, and the second to n-th pipes P2, P3, . . . , and Pn. The pumping pipe series P may be connected to each other in series using the second coupling member 30 a and coupling tube 40,. The n-th pipe Pn may have a top exposed above the ground. The n-th pipe Pn may be coupled to various meters, and valves. The underground water pump M may pump the water using an underground motor and turbine via the pumping pipe series P to the ground.

The packings 10 may be selectively coupled to the pumping pipe series P inserted in the borehole H, that is, the first pipe P1 and second to third, . . . , n-th pipes P2, P3, . . . , Pn to absorb the external shock to prevent the pipes from the damage. Thus, the underground water pump M coupled to a bottom of the first pipe P1 may be stably operated. In this connection, the packing 10 may safely guide the pumping pipe series P along the borehole H and may elastically contact the side walls of the borehole. Thus, the packing 10 may act as a shock buffer.

Each packing 10 may be hollow-cylindrical to wrap the pipe. Each packing 10 may be divided into upper and lower portions. Each packing 10 may have the first securing portions 14 at a top and bottom thereof. Each first securing portion 14 may be clamped using each clamping band 20. Between the first securing portions 14, the extension 12 may extend with a convex edge 13 to define a shock buffering space between the pipe and the wall of the borehole. The extension 12 may have a tapered shape as shown in FIG. 3. The extension 12 may be plural. In this connection, the plural extensions may be spaced from each other. Each extension may have the convex edge 13 at a vertical middle thereof.

In one embodiment, the plurality of extensions 12 may be spaced from each other. Between the extensions 12, a short second securing portion 15 may be formed to be secured to the clamping band 20. In one example as shown in FIG. 3, each packing 10 may have a pair of upper and lower extensions 12 and the second securing portion 15 disposed therebetween to be wrapped with and be secured to the clamping band 20 to be firmly fixed to the first pipe P1.

The clamping band 20 may firmly wrap each of the first and second securing portion 14,15 and thus secure each of the first and second securing portion 14,15 to the first pipe P1. The clamping band 20 may include a tie clamp, or cable clamp or band clamp, etc.

The packing 10 may have vertically elongate cut-away portions 16, 18 formed on the extension and/or securing portion. The vertically elongate cut-away portions may act to shorten or enlarge the diameter of the packing 10 in an elastic manner. The vertically elongate cut-away: portions may act to smoothen the water flow. The vertically elongate cut-a ay portions may allow the electrical wire or cable to extend therethrough to facilitate the installation and suppress the damage thereof.

The packing 10 may be made of a natural rubber, a synthetic rubber, a synthetic resin, a urethane, etc. with a good shock-absorption and elasticity.

While the first coupling member 30 receives therein the first pipe P1, the first coupling member 30 may pressure-contact the securing portion of the packing to suppress the clamping band from the release. For this, the first coupling member 30 may be secured to the first pipe, for example, via a welding.

The first coupling member 30 may have a body and vertical first guide 32 and second guide 34 formed in the body. The vertical first guide 32 and second guide 34 may prevent the body from being damaged against the rock. The vertical first guide 32 and second guide 34 may act to suppress the deviation of the electrical wire and the wire rope for the motor from the pipe assembly. For this, the first guide 32 and second guide 34 may be vertically and spacedly arranged and may be alternated with each other in a circumferential direction. Between the first guide 32 and second guide 34, first spaces 35 may be defined, through which the electrical wire E and the wire rope W may extend. Thus, the electrical wire E and the wire rope W extend between a plurality of the first guides 32 and second guides 34 and thus be wound around the first coupling member 30. Thus, the electrical wire E and the wire rope W may be prevented from the detachment from the pipe assembly. In this connection, the alteration of the first and second guides of the first coupling member 30 may allow the massive production of the first coupling member 30 using a mold. Thus, a separate cut-away process may be not necessary, thereby to improve the production rate thereof. In one example, the number of the first and second guides 32,34 may be 4 to 8 per a single first coupling member 30. This may vary depending on the diameter of the pipe. In one example, the number of the first and second guides 32,34 may be 6 per a single first coupling member 30.

For the first coupling member 30, at least one of the first guide 32 and second guide 34 may have a protrusion 33 formed thereon. Thus, the protrusion 33 may be fitted with the clamping band 20, and, thus, the first coupling member 30 may be secured to the band. This may prevent the first coupling member 30 from the displacement or deviation or release due to the external shock.

Further, in the present disclosure, the second coupling members 30 a may be coupled to tops of the first to n-th pipes P1, . . . , and Pn respectively, wherein each second coupling member 30 a has a second member body and vertical third and fourth guides 32,34 formed on the body to be alternated with each other to define further spaces 35 therebetween, wherein the electrical wire E and wire rope W for the motor pump M extend through the further spaces 35 respectively. The coupling tubes 40 may be coupled to bottoms of the first to n-th pipes P1 . . . Pn respectively, wherein each coupling tube 40 is screw-coupled to each second coupling member 30 a adjacent thereto. Specifically, the second coupling member 30 a may have a body and vertical third guide 32 and fourth guide 34 formed in the body. The vertical fourth guide 32 and fourth guide 34 may prevent the body from being damaged against the rock. The vertical third guide 32 and fourth guide 34 may act to suppress the deviation of the electrical wire and the wire rope for the motor from, the pipe assembly. For this, the third guide 32 and fourth guide 34 may be vertically and spacedly arranged and may be alternated with each other in a circumferential direction. Between the third guide 32 and fourth guide 34, the second spaces 35 may be defined, through which the electrical wire E and the wire rope W may extend. Thus, the electrical wire E and the wire rope W extend between a plurality of the third guides 32 and fourth guides 34 and thus be wound around the second coupling member 30 a. Thus, the electrical wire E and the wire rope W may be prevented from the detachment from the pipe assembly. In this connection, the alteration of the third and fourth guides of the second coupling member 30 a may allow the massive production of the second coupling member 30 a using a mold. Thus, a separate cut-away process may be not necessary, thereby to improve the production rate thereof. The guides may have a round shape to allow a smooth guidance of the pipe assembly P in and along the borehole H.

In one embodiment, each second coupling member 30 a has an inwardly stepped portion 36 formed at a vertical middle thereof to define an inner space of each second coupling member into upper and lower space portions, wherein the upper space portion receives a corresponding pipe P1, P2, . . . , or Pn and the lower space portion receives a corresponding coupling tube 40 via a screw coupling 37. This may allow an easy assembly of the pipes series in a field site. In one embodiment, the lower space portion receives a corresponding pipe P1, P2, . . . , or Pn and the upper space portion receives a corresponding coupling tube 40 via a screw coupling 37. For this, the coupling tube 40 may have threads 42. When the upper space portion receives a corresponding coupling tube 40 via a screw coupling 37, the coupling tube 40 may have lower threads 42 as shown in FIG. 3. In this connection, the second coupling member 30 a may receive the corresponding pipe P1, P2, . . . , or Pn and then the member 30 and corresponding pipe may be fixed to each other, for example, via a welding or screw.

Further, the first pipe may be coupled to a further coupling tube 40 via a bottom thereof and then to the underground water pump M. That is, the top 1 of the underground water pump M may be coupled to the bottom of the tube 40 via a screw coupling. The first pipe P1 with being fitted with the packing and first coupling member may be coupled to the second pipe P2 via a further coupling tube 40 via a screw coupling.

In this way, the underground water pumping pipe assembly 100 may smoothly slide along and on the inner wall of the borehole H and thus the pumping pipe series P may not be damaged. As the packing 10 and first, second coupling members 30,30 a are fixed secured to the pumping pipe series P, the underground water pumping pipe assembly 100 may prevent the underground water pump from the hit against the rock or side wall of the borehole H. Further, the packing 10 and first, and second coupling members 30,30 a secured to the pumping pipe series P may absorb the vibration or shock of the underground water pump M.

In the present disclosure, the packing and first, and second coupling members secured to the pumping pipe series may protect the pumping pipe series and the underground water pump from the hit or damage against the rock or side wall of the borehole H. Further, the packing and first, and second coupling members secured to the pumping pipe series may guide the electrical wire or rope to the motor pump in a reliable manner or without the twist or tangle thereof. In this way, the underground water pump may have a long life span and the borehole may be prevented from blocking.

In the present disclosure, the coupling member is tightly-pressed against an end of the packing and then the guide of the member is firmly secured to the clamping band. In this way, the external shock may not release the packing from the pipe assembly and thus the packing may have good durability.

Further, In the present disclosure, the alteration of the guides of the coupling members may allow the massive production of the coupling members using a mold. Thus, a separate cut-away process may be not necessary, thereby to improve the production rate thereof. 

1. An underground water pumping pipe assembly, comprising: a first pipe coupled to an underground water motor pump (M); second to n-th pipes (P2, P3, . . . , and Pn) wherein the second pipe is coupled to the first pipe, wherein the first to n-th pipes are coupled to each other in series; a packing configured to wrap the first pipe (P1), wherein the packing includes first securing portions at a top and bottom thereof, an extension extending between the first securing portions, and vertically elongate cut-away portions formed in the extension; clamping bands, each band coupled to each first securing portion to fix the packing to the first pipe (P1); and first coupling members to receive therein the first pipe (P1) and be coupled to the top and bottom of the packing respectively, wherein each first coupling member has a first member body and first and second guides formed on the body to be vertically arranged to be alternated with each other to define spaces therebetween, wherein an electrical wire (E) and wire rope (W) for the motor pump (M) extend through the spaces respectively.
 2. The assembly of claim 1, wherein one of the first and second guides has a protrusion formed thereon, wherein each first coupling member is secured to each clamping band with the protrusion being fitted with the clamping band.
 3. The assembly of claim 1, wherein the packing has a plurality of extensions vertically arranged to be spaced from each other, wherein the packing has a second securing portion between adjacent extensions.
 4. The assembly of claim 1, further comprising: second coupling members coupled to tops of the first to n-th pipes (P1, . . . , and Pn) respectively, wherein each second coupling member has a second member body and third and fourth guides formed on the body to be vertically arranged to be alternated with each other to define further spaces therebetween, wherein the electrical wire (E) and wire rope (W) for the motor pump (M) extend through the further spaces respectively; and coupling tubes coupled to bottoms of the first to n-th pipes (P1 . . . Pn) respectively, wherein each coupling tube is screw-coupled to each second coupling member adjacent thereto.
 5. The assembly of claim 4, wherein each second coupling member has an inwardly stepped portion formed at a vertical middle thereof to define an inner space of each second coupling member into upper and lower space portions, wherein the upper space portion receives a corresponding pipe (P1, P2, . . . , or Pn) and the lower space portion receives a corresponding coupling tube via a screw coupling. 